Wireless charger



FIG. 1 is a front elevational view of a wireless charger showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is an enlarged left elevational view thereof;

FIG. 4 is an enlarged right elevational view thereof;

FIG. 5 is an enlarged top plan view thereof;

FIG. 6 is an enlarged bottom plan view thereof;

FIG. 7 is a bottom, front, left perspective view thereof; and,

FIG. 8 is a bottom, rear, right perspective view thereof.

The broken lines in the drawings depict portions of the wireless charger that form no part of the claimed design. 

CLAIM The ornamental design for a wireless charger, as shown and described. 